Muscle Activities of Muscles of the Hip Joint during Bridging

Abstract

The purposes of this study were to examine muscle activities of hip joint during various bridgings, and to compare the results with those during MMT3. Of 12 healthy males, rectified filtered electromyography of gluteus maximus, gluteus medius, tensor fascia latae, and adductor magnus was recorded. The muscle activities during bridging on both feet were under 20% of the maximum isometric contraction, and those during bridging on one foot were significantly greater than those on both feet, especially in extensor and abductor. Compared with muscle activities during MMT3, those during bridging on one foot was greater, except for adductor magnus. These results suggest the effectiveness of bridging on one foot as a muscle strengthening exercise not only for gluteus maximus, but also for gluteus medius, and tensor fascia latae. It was also indicated that muscle activity greater than during MMT3 is requisite for bridging on one foot. © 1998, The Society of Physical Therapy Science. All rights reserved.